Using Simulink S-functions with finite difference method applied for heat exchangers

  • Authors:
  • Stepan Ozana;Martin Pies

  • Affiliations:
  • Department of Measurement and Control, VSB-Technical University of Ostrava, Czech Republic;Department of Measurement and Control, VSB-Technical University of Ostrava, Czech Republic

  • Venue:
  • ICS'09 Proceedings of the 13th WSEAS international conference on Systems
  • Year:
  • 2009

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Abstract

This paper deals with application of finite difference method for solving a general set of partial differential equations in Matlab & Simulink environment. Particularly it describes use of Simulink S-functions which make it possible to set-up the most complex systems with complicated dynamics. There's a comparison of M and C S-functions which are two main approaches when building user-defined blocks in Simulink, regarding the performance and efficiency of the simulation for M and C versions of the codes and possibility to perform a real-time simulation. As an example, these approaches are shown on solving the dynamics of a concurrent and a counter-flow heat exchanger.